Pump mechanism



S. DEAN PUMP MECHANI SM Aug. 1, 1933.

Filed March 13, 1931 Z 4 4 4 4 u 4/ AD 4 L /V INVENTOR.

I SUI/?KT .DE/?M BY W %W A TTORN E YS.

Patented Aug; l, 1.933 i PATENT OFFlCE PUDIP MECHANISM Stua't Dean, Indianapolis, Ind., assignor toDean Brothers Co., Indianapolis, Ind., a Corporation' Application March 13, 1931. Serial No. 522,?;5'7

12 Clams.

This invention relates to a vertical purnp mechanism and particularly the means for lubricating the same and maintaining the lubricant in unadulterated condition.

This application is a continuation in part of the prior applications, Serial No. 219368, filed September 16, 1927 and entitled Pump mechanisin, now Patent No. l,816,517, dated July 28, 1931, and application Serial No. 293,*42, filed July 18, 1928, entitled Combination drive and oil pump" which was a continuation of the before mentioned application and now has issued as Patent No. 1,785,112, dated December 16, 1930.

The chief object of the invention is to provide a vertical punp with means for positively insuring lubrication and also with means for positively insuring non-adulteration thereof from pump operation.

One feature of the invention consists in the provision of positive means for transferring lubricant from a transfer disc to a catch-hasin from which the lubricant discharges by gravity through outlets to the various bearings therebeneath.

Another feature of the invention. consists in the mutiple character of said positive transfer means, whereby the lubrcant will be transferred when the power mechanism of the pump rotates in either direction.

Another feature of the invention consists in themeans for entrapping drippage which might discharge or fall along the piston rod and the directional discharge `of said drippage from the rod to a sump formation and ,the gravity conveyance of said collected drippage from said sump to beneath the power mechanism of the pump.

Another feature of the invention consists in the transfer arrangement for conveying gravity supplied lubricant to ofiset bearings requiring lubrication. i v

The full nature of the invention will be understood from the accompanying drawing and the following description and claims.

In the drawing, Fig. 1 is a transverse, central, sectional View through the power mechanism and parts associated therewith.

Fig. 2 is a longitudnalcentral, sectional view taken at 'right angles to Fig. 1 and of substantially the same parts, except the drippage diversion Construction.

Fig. 3 is a view taken at right angles in Fig. 2, and on the line 3-3 of Fig. 2 and in the direction of the arrows.

i Fig. 4 is a central; sectional View taken on line 4-4 of Fig. 1 and in the direction of the arrows.

Fig. 5 is-a top plan View' of the catch basin and straddling oil catcher, the cover being removed.

Fig; 6 is an end elevation of the scraper plate or oil diverter. `Fig. 7 is a front View thereof.

In the drawing 10 indicates a base including side walls 11 which may, ifdesired, be offset as at 12, thereby forming a reservoir for lubricant, drainage being possible through the opening 13 when desired. 1 4`isanother opening for determiningthe exact amount of lubricant to be supplied to the reservoir. 15 indicates a cover for the reservoir which has formed upon its upper surface, a catch-basin, the widest portion thereof being indicated by the dotted lines as at 16 in Fig'. 3 and the narrowest portion. being indicated'as at 17 in Fig. 1. surrounding the catchbasin and defining the same, is an outer vertical wall structure 18. The cover includes the bearings 20 for the reciprocating members 21,' the same being portion's of the piston rod constructions for the pump structure supported by the members 22, carried by the cover as at 23.

The other portion of the piston rod Construction is indcated at 24 and-the lower end of member 24: is threaded as at 25 and'has a threaded connection with the member 21 at the upper end thereof; A' lock nut 26 adjustably and rigidly connects the two piston rod forming members in aligned and adjusted position.

A drippage collector or diverter is mounted upon the piston rod Construction above the cover 15 and includes an encircling body portion 28- see Fig. idefinecl by wall 28 which is extended outwardlyas at 29 and the body portion 27 is extended downwardly as at 30, thereby forming a discharge extending laterallyfrom the piston 9 rod.

suitable gasket means in theform of thin paper washers, or the like, may be positioned above and below the diverter, and the lock nut 26 serves as a lower support for the diverter and another nut 31 serves as a retainer and co-operates With nut 26 to clamp the diverter in adjusted position upon the piston rod Construction. Paper washers are interposed between each nut and the diverter. The clamping arrangement preferably is provided, so that the diverter will not Vibrate and possibly rotate. The paper Washers are provided so that if they become moistened by Water drippage, they will swell and seal the connections around the rod and through the i upon said cover by the wall 32.

An outlet 33 in the lower portion thcreof, is supplied With conduit means 34, so that gravity drainage of the sump is assured through the Conduit 34 to any suitable collector beneath or remote from the pump, thereby preventing the water drippage, or like liquid handled by the pump, from passing along the piston rods and through the bearings and into the oil reservoir chamber therebeneath and thus contaminatthe lubricant.

The T-shaped catch-hasin indicated by the numerals 16 and 17 and dened by the walls 13,`

includes a suitable number of outlet openings 35 to the bearings 36, which mount the overhead power shaft 37. Overhead power shaft 37 is rotatably supported in the spaced hearing plates 38 and said hearing plates also rotatably support the crankshaft 39. Crankshait 39 is connected to a triangular actuator 40 at one Vertex` 41 thereof and the other Vertices 42 are connected by links 43 to the other ends of the connecting rod members 21 as at 44. The midportion of the base 45 of the triangular actuator is pivotally connected as at 46 to a link 47 pivotally supported at 48 in the arms-9 of cne of the hearing forming members 38. The crankshaft mounts the spur gear 50 and meshing therewith is the pinion 51 carried by the power 'shaft' 37. the aforesaid is disclosed'in the co-pending application referred to and is the subject matter of saidapplication.` The level of the oil in the reservoir is determlned by opening 14-see Fg. z and thus the actuator and the link connections thereto and the mounting of the actuator on the crankshaft all run in oil.

At the meshing engagement of the driving pinion and driven gear and mounted upon the power shaft, is a lubricant collector `disc 52, which is of such diameter that it overlaps said meshing engagement and also projects'upwardly into the catch-hasin and through a slot or inlet 53 therein. Positioned upon the same side of the disc'as the pinion and above the same and supported by the side wall 18 of the cover, is a straddling oil catcher 54 detachably Secured as at 55 to the same; The straddling oil diverter has a central portion 56 with an upwardly and inclined wall or surface 57, so that the point 58,

`see Fig. 3, and the Wall 57 serve as a collecting edge and the lubricant removed from the disc 52 passes upwardly along the inclined slope 57 and thence discharges outwardly and down-` wardly as at 158, see Fig. 2, into the catch basn before mentioned.

As shown in Figs. 1 and 3 the catch basin 17 lies above shaft 37 and an aperture permits the gravity discha'ge of lubricant from catch basin 17 to the shait which is provided with a suitable transfer device, herein shown as a cotter key 71. The pivotal connections at 44 between the reciprocating members or pitmen 21 and the links 43 are offset laterally from the catch hasin 17. Each link 43 adjacent pivot 44 is apertured at 72 and the transfer device (cotter key 71) throws the lubricant outwardly so that some of it engages upon the pitmen and some All of` is trapped by the apertures 72 While the remainder is returned to the reservoir 10.

.As shown clearly in 3., the scraper plate is provided with a plurality of walls 57, which are oppositely directed and inwardly directed and said Walls include there between an elevated, central abutment 59, so that the lubricant which collects in the channel 157 having the lower inclined wall 57, clischarges over the lower horizontal Wall 61 and thencc into the catch-hasin instead of passing over the central portion 59 and down the other inclined wall 57 of the adja'cent channel 157.

The direction of rotation of the power mechanisin is immaterial With this Construction, for it is equally effective for either direction of rotation. As set forth in the before mentioned patent, the lubricant picked up by the driven gear is squeezed from the gear teeth or between the teeth, by the pinion teeth and is discharged 'to the disc 52, and by the means just described, this lubricant is positively removed from the disc and supplied to the catch-hasin for gravity discharge to the parts outlined.

Should the amount of oil discharged to the catch-hasin become excessive, the surplus oil will discharge around the central portion 59 and thence pass downwardly through the other channel 157, or will pass over the central portion 59 and return to the reservoir. A suitable cover 63 may be provided and is detachably secured to ,the catch-hasin as at 64. This prevents dust and dirt collecting in the catch-basin and contaminating the lubricant supplied thereto.

. t The invention claimed s:--

1. In a pump the combnation of an o'verhead lubricant supply basn having gravity, supplying outlets and an inlet opening discharging above the bottom of the basin, a pair of meshing gcars therebeneath, the lower gear being adapted to run in lubricant, a disc rotatably mounted adjacent the upper gear and overlapping the meshing contact of the gears for receiving lubricant discharged from the gears at the contact, and scraping means positioned adjacent the disc in juxtaposition to the inlet for receivirg lubricant from and carried by the disc and discharging the lubricant to the basin.

2. In a pump, combination of an overhead lubricant supply basin having gravity supplying outlets and an inlet opening discharging above the bottom of the hasin, a pair of meshing gears therebeneath, the lower gear being adapted to run in lubricant, a disc rotatably mounted adjacent the upper gear and overlapping the meshing contact of the gears for receiving lubricant discharged from the gears at the contact, and scraping means positioned adjacent the disc in juxtapositicn to the inlet for receiving lubricant from and carried by the disc and for discharging lubricant to the basin, said scraping means including an upwardly inclined lower surface, the outer edge of which lies immediately adiacent the disc for removing the lubricant from the disc, said inclined surface constituting a channel to the supply hasin.

3. In a pump the combination of an overhead lubricant supply basin having gravity supplying outlets and an inlet opening'discharging above the bottom of the basin, a pair of meshing gears therebeneath, the lower gear being adapted to runin lubricant, a disc rotatably mounted adjacent the upper gear and cveriapping the meshing contact of the gears forreceiving lubricant discharged from the gears at the` contact, and

scraping means positioned adjacent the disc in' juxtaposition to the inlet for receiving lubricant from and carried by the disc and discharging the lubricant to the basin, said disc projecting upwardly an appreciable distance into the inlet opening.

4. In a pump the combination of an overhead lubricant supply basin having gravity supplying outlets and an inlet opening discharging above the bottom of the basin, a pair of meshing gears therebeneath, the lower gear being adapted to run in lubricant, a disc rotatably mounted adjacent the upper gear and overlapping the meshing contact of the gears for receiving lubricant discharged from thegears at the contact, and scraping means positioned adjacent the disc in juxtaposition to the inlet for receiving lubricant from and carried by the disc and discharging the lubricant to the basin, said scraping means including a central portion having upwardly and oppositely directed surfaces for lubricant passage when the disc rotates in either direction.

.5. In a pump the combination of an overhead lubricant supply basin'having gravity supplying outlets and an inlet opening discharging above the bottom of the basin, a pair of meshing gears therebeneath, the lower gear being adapted to run in lubricant, a disc rotatably mounted adjacent the upper gear and overlapping the meshr ing contact of the gears for receiving lubricant discharged from the gears at the contact, and scraping means positioned adjacent the disc in juxtaposition to the inlet for receiving lubricant from and carried by the disc and discharging the lubricant to the basin, said scraping means including a central portion having upwardly and inwardly directed surfaces for lubricant passage When the disc rotates in either direction.

6. In a pump the combination of an overhead lubricant supply basin having gravity supplying outlets and an inlet opening discharging above A the bottom of the basin, a pair of meshing gears therebeneath, the lower gear being adapted to' run in lubricant, a disc rotatably mounted adjacent the upper gear and overlapping the meshing contact of the gears for receiving lubricant discharged from the gears at the contact, and scraping means positioned adjacent the disc in juxtaposition to the inlet for receiving lubricant from and carried by the disc and discharging the lubricant to the basin, said disc projecting up- WardIy an appreciable distance, into the inlet opening, and said scraping means including a central portion having upwardly and oppositely directed surfaces for lubricant passage When the disc rotates in either direction.

7. In a pump the combination of an overhead lubricant supply basin having gravity supplying outlets and an inlet opening discharging above the bottom of the basin, a pair of meshing gears therebeneath, the lower gear being adapted to run in lubricant, a disc rotatably mounted adjacent the upper gear and overlappng the meshing contact of the gears for receiving lubricant discharged from the gears at the contact, and

,scraping means positioned adjacent the disc in juxtapcsition to the inlet for receiving lubricant from and carried by the disc and discharging the lubricant to the basin, said disc projecting upwardly an appreciable distance into the inlet opening, and said scraping means including a 'central portion having upwardly and inwardly directed'surfaces for lubricant passage When th disc rotates' in either'direction. 8. In a pump 'the combination of an overhead lubricant supply basin having gravity supplying outlets and an inlet' opening discharging above the bottomiof the basin, a pair of meshing gears lubricant from and carried by the disc and discharging the lubricant to the basin, said scraping means including a central portion having upwardly and oppositely directed surfaces for lubricant passage when the disc rotates in either direction, the central portion of said scraping means extending downwardly and into the inlet opening.

9. In a pump the combination of an overhead lubricant supply basin having gravity supplyng outlets and an inlet opening discharging above the bottom of the basin, a pair of meshing gears therebeneath, the lower gear being adapted to run in lubricant, a disc rotatably mounted adjacent the upper gear and overlapping the meshing contact of the gears for receiving lubricant discharged from the gears at the contact,

and scraping means positioned adjacent the disc ing means including a central portion having upwardly and inwardly directed surfaces for lubricant passage when the disc rotates in either direction, the central portion of said scraping means extending downwardly and into the inlet opening. I

10. In a pump the combination of an over head lubricant upply basin having gravity supplying outlets and an inlet opening discharging above the bottom of the basin, a pair of meshing gears therebeneath, the lower gear being adapted to run in lubricant, a disc rotatably mounted adjacent the upper gear and overlapping the meshing contact of the gears for receiving lubricant discharged from the gears at .the contact, and scraping means positioned adjacent the disc in juxtaposition to the inlet for receiving lubricant 'from and carried by the disc and discharging the lubricant to the basin, said disc p'ojecting upwardly an appreciable distance into the inlet opening, and said scraping means including a central portion having upwardly and oppositely directed surfaces for lubricant passage When the disc rotates in either direction, the central portion of said scraping means extending downwardly and into the inlet openng.

11. In a pump the combination of an overhead lubricant supply basin having gravity supplying outlets and an inlet opening discharging above the bottom of the basin, a pair of meshing gears therebeneath, the lower gear being adapated to run in lubricant, a disc rotatably mounted adjacent the upper gear and overlapping the meshing contact of the gears for receiving lubricant discharged from the gears at the contact, and scraping means positioned adtance into the inlet opening; and said s'craping means including a central portion having upwardly and inwardly directed surfacesfor lubricant passage when the disc rotates in'either dit rection, the central portion of said sc 'aping means extendng downwardly and into the inlet opening.

12. In a pump the combination of an overhead iubricant supply basin having gravity supplying outlet and an inlet opening discharging above the bottom of the hasin, a pair of meshing gears therebeneath, the lower gear` being adapted to run in lubricant, a disc rotatably STUART DEAN. 

